ECCouncil Updated 212-89 Exam Questions and Answers by isra

Obfuscation is a technique used to make data or code difficult to understand. It is often employed by attackers to conceal the true intent of their code or communications, making it harder for security professionals, automated tools, and others to analyze or detect malicious activity. Obfuscation can involve the use of ambiguous or misleading language, as well as more technical methods such as encoding, encryption, or the use of nonsensical variable names in source code to hide its true functionality.

Pharming is a cyber attack intended to redirect a website's traffic to another, bogus website. By poisoning a DNS server's cache, attackers can redirect users from the site they intended to visit to one that is malicious, without the user's knowledge or any action on their part, such as clicking a deceptive link. This technique is particularly insidious because it can affect well-intentioned users who type the correct URL into their browsers but are still redirected. War driving involves searching for wireless networks from a moving vehicle, skimming refers to stealing credit card information using a device placed on ATMs or point-of-sale terminals, and pretexting is a form of social engineering where the attacker lies to obtain privileged data.

Setting up a computer forensics lab involves several critical steps that need to be executed in a logical and efficient order. The correct sequence starts with planning and budgeting (2), as it is essential to understand the scope, resources, and financial commitment required for the lab. The next step involves considering the physical location and structural design (1) to ensure the lab meets operational needs and security requirements. Work area considerations (3) follow, focusing on the layout and functionality of the workspace. Human resource considerations (6) are crucial next, to ensure the lab is staffed with qualified personnel. Physical security recommendations (4) are then implemented to protect the lab and its resources. Finally, forensic lab licensing (5) ensures the lab operates within legal and regulatory frameworks.

Explanation (OT/IoT incident handling):

For smart grid and IoT/OT environments, the first step is to activate the dedicated incident response process that prioritizes safety and continuity while isolating affected components. Immediate shutdown (A) can create operational and safety consequences and should be reserved for clear safety threats. Firmware updates (B) are risky during an active incident; updating can brick devices, change system states, and destroy evidence while not guaranteeing removal of compromise. Third-party engagement (D) can help, but it’s not the first operational step—your internal playbook must begin containment now.

(C) correctly focuses on isolating affected devices/segments, limiting lateral movement, and preserving operational stability. In practice, this can include network segmentation, blocking suspicious outbound communications, switching to manual controls where necessary, and capturing logs/telemetry before making changes. This aligns with common containment strategy: stop spread first, then analyze/eradicate, then recover with validated clean states.